Muse Ember from Meta is now available on AI Gateway. It is a lightweight reasoning model for the high-volume parts of an agent run, such as coding sub-tasks, tool calls, and document analysis.
Muse Ember handles the bounded tasks agents repeat many times in a single run, like implementing a helper function, calling a tool, or summarizing a document.
The model accepts text, image, and video input with a 1M-token context window, so an agent can pass it code, screenshots, documents, and clips in the same run. Tool calling lets your application feed each result into the next step. Reasoning effort is adjustable from minimal to max.
Call it through the AI SDK, the Chat Completions, Responses, and Anthropic Messages APIs, or a coding agent connected to AI Gateway.
Use meta/muse-ember as the model name:
To use it in Claude Code, Codex, Cursor, and more, install the latest Vercel CLI and run setup:
Then select `meta/muse-ember` in the agent. See the [coding agents guide](https://vercel.com/docs/ai-gateway/coding-agents) for details.
Try Muse Ember in the [model playground](https://vercel.com/ai-gateway/models/muse-ember).
AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in custom reporting, Zero Data Retention support, budgets for API keys, routing rules, and more.
AI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including on Bring Your Own Key (BYOK) requests.
You can view all language models available on AI Gateway.